On April 25, 2019, the U.S. Environmental Protection Agency (EPA) issued a proposed rule that would amend the Toxic Substances Control Act (TSCA) Section 8(a) Chemical Data Reporting (CDR) requirements and the TSCA Section 8(a) size standards for small manufacturers. 84 Fed. Reg. 17692. The current CDR rule requires manufacturers (including importers) of certain chemical substances listed on the TSCA Chemical Substance Inventory (TSCA Inventory) to report data on chemical manufacturing, processing, and use every four years. EPA is proposing several changes to the CDR rule to make regulatory updates to align with new statutory requirements of TSCA, improve the CDR data collected as necessary to support the implementation of TSCA, and potentially reduce the burden for certain CDR reporters. Proposed updates to the definition for small manufacturers, including a new definition for small governments, are being made in accordance with TSCA Section 8(a)(3)(C) and impact certain reporting and recordkeeping requirements for TSCA Section 8(a) rules, including CDR. EPA states that the definitions may reduce the burden on chemical manufacturers by increasing the number of manufacturers considered small. Overall, according to EPA, the regulatory modifications may better address EPA and public information needs by providing additional information that is currently not collected; improve the usability and reliability of the reported data; and ensure that data are available in a timely manner. Comments are due by June 24, 2019. More information on the proposed rule is available in our full memorandum.